Title (en)

PROCESS FOR PRODUCING MESOPHASE PITCH AND CARBON PRODUCTS PRODUCED FROM THE MESOPHASE PITCH

Publication

EP 0157615 A3 19860416 (EN)

Application

EP 85302226 A 19850329

Priority

• JP 6422784 A 19840331
• JP 6422884 A 19840331

Abstract (en)

[origin: EP0157615A2] A mesophase pitch suitable for carbon products, particularly for carbon fibers, which has a mesophase content of at least 40%, preferably at least 60%, and a larger mesophase domain, is produced by adding at least one part by weight of at least one of an alcohol and a phenol to 100 parts by weight of heavy bitumens, subjecting the resulting mixture to pretreatment by heating at least at 250°C, and then subjecting the pretreated mixture to heat treatment until mesophases are formed.

IPC 1-7

C10C 1/00; C10C 1/18; C10C 3/00

IPC 8 full level

C10C 1/19 (2006.01); C10C 3/00 (2006.01); D01F 9/145 (2006.01)

CPC (source: EP US)

C10C 1/19 (2013.01 - EP US); C10C 3/002 (2013.01 - EP US); D01F 9/145 (2013.01 - EP US)

Citation (search report)

• [A] GB 2109358 A 19830602 - NIPPON OIL CO LTD
• [A] US 3238164 A 19660301 - SPECK RHOADS M
• [A] US 3379708 A 19680423 - PEACOCK DIXON W
• [A] GB 2028368 A 19800305 - KUREHA CHEMICAL IND CO LTD

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0157615 A2 19851009; EP 0157615 A3 19860416; EP 0157615 B1 19890315; DE 3568796 D1 19890420; US 4631181 A 19861223

DOCDB simple family (application)

EP 85302226 A 19850329; DE 3568796 T 19850329; US 71706985 A 19850328